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Key to families | Table of families and genera

Specimen numbers are hyperlinked to records in the Consortium of California Herbaria data view where possible. Taxa are hyperlinked to entries in the Jepson Interchange via the "[Online Interchange]" link.

 

PHYSOCARPUS NINEBARK

Sang-Hun Oh


Shrub, generally ± stellate-hairy. Leaf: petioled, stipuled, deciduous, ovate to ± round, generally palmately 3–7-lobed, crenate to serrate. Inflorescence: umbel-like cluster, bracted; pedicel bractlets generally 0. Flower: hypanthium bell-shaped, bractlets 0; sepals persistent; petals rounded, white or pale pink; stamens 20–40, exserted; pistils 1–5, fused at base (if 3–5, fused below middle), ovary superior, style thread-like, stigma head-like. Fruit: follicles, inflated or ± flat, dehiscent along both sutures. Seed: 1–4, ovoid; coat hard, shiny.
± 6 species: North America, Asia. (Greek: bladdery fruit)

Key to Physocarpus

1. Leaf blade of flower branches 5–20 mm, petiole 3–10 mm; pistil generally 1; fruit ± flat laterally, ± = hypanthium; White and Inyo Mountains, n Desert Mountains ..... P. alternans

1' Leaf blade of flower branches 22–85 mm, petiole 7–30 mm; pistils 3–5, fused at base; fruit inflated, >> hypanthium; California Floristic Province (except Great Central Valley) ..... P. capitatus

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Citation for the whole project: Jepson Flora Project (eds.) [year] Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html [accessed on month, day, year]
Citation for an individual treatment: [Author of taxon treatment] [year]. [Taxon name] in Jepson Flora Project (eds.) Jepson eFlora, [URL for treatment]. Accessed on [month, day, year].
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